Làm thế nào để chạy migrations trong CI/CD pipeline production?

Tạo idempotent migration scripts riêng và review trước khi deploy.

• Không bao giờ gọi db.Database.Migrate() khi app khởi động trong production — nhiều instance chạy đồng thời sẽ gây lock contention.
• Apply migrations trong deployment pipeline trước khi app start.
• Dùng Sql() cho các custom operations ngoài model changes.
• Luôn test migrations trên staging trước.

Generate idempotent migration scripts separately and review them before deployment.

• Never call db.Database.Migrate() at app startup in production — multiple concurrent instances cause lock contention.
• Apply migrations in the deployment pipeline before the app starts.
• Use Sql() for custom operations beyond model changes.
• Always test migrations on staging first.